2796857856 has 320 divisors, whose sum is σ = 9074419200. Its totient is φ = 845365248.

The previous prime is 2796857827. The next prime is 2796857857. The reversal of 2796857856 is 6587586972.

2796857856 is a `hidden beast` number, since 2 + 7 + 9 + 6 + 8 + 578 + 56 = 666.

Its product of digits (50803200) is a multiple of the sum of its prime divisors (294).

It is a junction number, because it is equal to n+sod(n) for n = 2796857793 and 2796857802.

It is not an unprimeable number, because it can be changed into a prime (2796857857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14197150 + ... + 14197346.

It is an arithmetic number, because the mean of its divisors is an integer number (28357560).

Almost surely, 2^2796857856 is an apocalyptic number.

2796857856 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2796857856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4537209600).

2796857856 is an abundant number, since it is smaller than the sum of its proper divisors (6277561344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2796857856 is a wasteful number, since it uses less digits than its factorization.

2796857856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 294 counting only the distinct ones).

The product of its digits is 50803200, while the sum is 63.

The square root of 2796857856 is about 52885.3274169689. The cubic root of 2796857856 is about 1408.9323198476.

The spelling of 2796857856 in words is "two billion, seven hundred ninety-six million, eight hundred fifty-seven thousand, eight hundred fifty-six".